Thermal overload relay - VRS2-3UA50

VRS2(3UA50)
Application
VRS2 series thermal overload relay are suitable for overload and phase-failure protection of AC motors with frequency of 50/60HZ,voltage up to 690-1000V,current up to 0.1-630A under 8-hours duty or uninterrupted duty.
Functions provided by these relays,are phase-failure protection,temperature compensation,ON/OFF indication and manual/automatic reset.
Applicable standards:National standard:GB 14048,International standard: IEC 60947-4-1
The relays can be mounted onto contactors or installed as single units.

Operating conditions
The altitude couldn’t exceed 2000m
Ambient temperature: -5～+55℃ and the average temperature no more than +35℃ in 24 hours.
Atmosphere:comparative humidity no more than 50% at max +40℃,and it may be higher at a lower temperature.The lowest average temperature no more than +20℃ in the wettest month.The maximum average comparative humidity of this month couldn’t exceed 90%,the change of temperature leading to dew on the product must be considered.
Class of pollution: class 3
The slope between installation surface and vertical surface couldn’t exceed ±5。
Keeping away from explosive,corrosive and electric atomy.
Keeping dry
The product should be used and installed at certain place without any shock,vibration etc.

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